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  1. <?php
  2. function isValidColor( $inputColor) {
  3.     $len = strlen( $inputColor);
  4. 	if( $len != 3  &&  $len != 6) return false; // только длиной 3 или 6
  5. 	for( $i=0; $i<$len; $i++) {
  6. 		$code = ord( substr($inputColor, $i, 1));
  7. 		if( $code >= 97  &&  $code <= 102) continue;
  8. 		if( $code >= 65  &&  $code <= 70) continue;
  9. 		if( $code >= 48  &&  $code <= 57) continue;
  10. 		return false;
  11. 	}
  12.  
  13. 	return true;
  14. }
  15.  
  16.  
  17. $tests = array(
  18. 	'FFF'		=> true,
  19. 	'FA0123'	=> true,
  20. 	'бла'		=> false,
  21. 	'<script>'	=> false,
  22. 	'000000'	=> true,
  23. );	
  24.  
  25. $allGood = true;
  26. foreach( $tests AS $test => $expects) {
  27. 	$result = isValidColor( $test);
  28. 	if( $result === $expects) {
  29. 		echo '.';
  30. 	} else {
  31. 		printf("\nTest FAILED for \"%s\": expected %s, got %s\n", $test, $expects, $result);
  32. 		$allGood = false;
  33. 	}
  34. }
  35.  
  36. if( $allGood) echo "\nAll tests passed!\n";
Success #stdin #stdout 0.02s 52432KB
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.....
All tests passed!
https://ideone.com/DK1lHF
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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